JP2661238B2 - Water level detector - Google Patents
Water level detectorInfo
- Publication number
- JP2661238B2 JP2661238B2 JP1039905A JP3990589A JP2661238B2 JP 2661238 B2 JP2661238 B2 JP 2661238B2 JP 1039905 A JP1039905 A JP 1039905A JP 3990589 A JP3990589 A JP 3990589A JP 2661238 B2 JP2661238 B2 JP 2661238B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- water supply
- pressure
- water level
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 97
- 238000001514 detection method Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Control For Baths (AREA)
- Control Of Non-Electrical Variables (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、浴槽に設定量の水または湯を給水し、循環
して設定温度に保つ自動風呂の水位検知装置に関するも
のである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water level detecting device for an automatic bath which supplies a bath with a set amount of water or hot water and circulates the bath at a set temperature.
従来の技術 従来のこの種の水位検知装置のシステム図を第２図に
示す。１は貯水部である浴槽、２は浴槽１の側部に設け
られたアダプター、３は湯沸器であり、アダプター２と
湯沸器３間は往き管４と戻り管５とで接続されている。
50は戻り管５の外部配管である。51は排水栓である。往
き管４には貯水部１内の水を循環したり、貯水部１内に
給水を行うためのポンプ６と、循環水の温度を上げるた
めの加熱手段７とが接続されている。また戻り管５には
貯水槽１の水位を検知するための圧力センサ８と循環水
の温度を検知する温度センサ９とが接続されている。ま
た給水源10が給水管11を介して戻り管５に設けた切換手
段12に接続されている。切換手段12は往き管４の接続を
戻り管５もしくは給水管11に切り換えるものである。ま
た、13は制御手段であり、本発明の第３図を利用して説
明すれば（圧力センサ８からの信号をうける圧力上昇度
合判定手段のないものが従来例）圧力センサ８と温度セ
ンサ９の信号を入力として各設定値との判定を行い、メ
モリをプロセッサとの共働によってポンプ6,加熱手段7,
給水源10,切換手段12を制御するものである。2. Description of the Related Art FIG. 2 shows a system diagram of a conventional water level detecting device of this kind. 1 is a bathtub as a water storage unit, 2 is an adapter provided on the side of the bathtub 1, 3 is a water heater, and the adapter 2 and the water heater 3 are connected by a going pipe 4 and a return pipe 5. I have.
50 is an external pipe of the return pipe 5. 51 is a drain plug. The outgoing pipe 4 is connected to a pump 6 for circulating water in the water storage unit 1 and supplying water to the water storage unit 1 and a heating means 7 for increasing the temperature of the circulating water. The return pipe 5 is connected to a pressure sensor 8 for detecting the water level of the water storage tank 1 and a temperature sensor 9 for detecting the temperature of the circulating water. Further, a water supply source 10 is connected via a water supply pipe 11 to switching means 12 provided on the return pipe 5. The switching means 12 switches the connection of the outgoing pipe 4 to the return pipe 5 or the water supply pipe 11. Reference numeral 13 denotes a control means, which will be described with reference to FIG. 3 of the present invention (a conventional apparatus without a pressure rise degree determining means receiving a signal from the pressure sensor 8). The input signal is used to judge each set value, and the memory is operated in cooperation with the processor by the pump 6, the heating means 7,
It controls the water supply source 10 and the switching means 12.
上記構成において、貯水部１の水位を湯沸器３側の圧
力センサ８で検知し、設定水位に給水するものであり、
圧力センサ８が検知する圧力は第５図のPA＋PXである。
このうち、アダプター２から上の分の水位は人体の寸法
で決まっており、その差が少ないために浴槽が違っても
あまり変化が無く、したがって圧力PAも変化が少ない
が、アダプター２と圧力センサ８間の圧力PXは貯水部１
と湯沸器３の相対的な設置状況によって大きく変化し、
そのため画一的に定めることは出来ず設置現場での一品
調整が必要になって不便である。しかも前記のように一
品調整したとしても、圧力センサや制御器などの経年変
化によって変わってしまう。しかし第５図の圧力特性図
に示すように、第４図に示すテスップS1で給水スタート
してステップS2で切換手段12を給水管11に接続し、ステ
ップS3で給水源10から給水を始め、ステップS4でポンプ
６を始動し、貯水部１への給水を開始して貯水部１へ水
が入り出してからアダプター２に達するまでは圧力の変
化がなく、水位がアダプター２を横切ったときから圧力
が上昇する特性を示すので、その圧力変曲点をステップ
S5で検出してステップS6で圧力値を記憶し、基準値とす
ることにより、設置条件に関係なく一定の水位に給水す
ることが可能になる。その原理を用いた制御手段13によ
る制御とその給水動作のフロー図を第４図に示す。経過
時間t0までがステップS1〜S4に示す基準値給水であり、
アダプター２に達するまでの状態である。経過時間t0で
水位がアダプター２を横切り、ステップS5に示す圧力変
曲点検知を行う。ステップS6でその後の圧力値を基準値
として記憶し、そこからPAの上昇を行うまでステップS7
で設定値給水を行う。経過時間tAで設定値になったら、
ステップS8〜S10に示す通り、給水停止を行うものであ
る。In the above configuration, the water level in the water storage unit 1 is detected by the pressure sensor 8 on the water heater 3 side, and water is supplied to the set water level.
The pressure detected by the pressure sensor 8 is P A + P X in FIG.
Of these, minute water level above the adapter 2 are determined by the human body size, without even much changed tub differently because the difference is small, thus the pressure P A is also a small change, the adapter 2 and the pressure The pressure P X between the sensors 8 is the water storage unit 1
Changes greatly depending on the relative installation of the water heater 3 and
Therefore, it cannot be determined uniformly, and it is necessary to adjust one item at the installation site, which is inconvenient. Moreover, even if one product is adjusted as described above, it will change due to aging of the pressure sensor, the controller, and the like. However, as shown in the pressure characteristic diagram of FIG. 5, water supply is started at test S1 shown in FIG. 4, the switching means 12 is connected to the water supply pipe 11 at step S2, and water supply is started from the water supply source 10 at step S3. In step S4, the pump 6 is started, the water supply to the water storage unit 1 is started, and the pressure does not change from the time when the water enters and returns to the water storage unit 1 to the time when the water reaches the adapter 2, and from when the water level crosses the adapter 2. Since the pressure shows a characteristic of increasing pressure, step the pressure inflection point
By detecting the pressure in S5 and storing the pressure value in step S6 and setting it as a reference value, it becomes possible to supply water to a constant water level regardless of installation conditions. FIG. 4 shows a flow chart of the control by the control means 13 using the principle and the water supply operation. Until the elapsed time t 0 is a reference value feedwater in step S1 to S4,
It is in a state until it reaches the adapter 2. Elapsed time t 0 level crosses the adapter 2, the performing the pressure inflection point detection shown in step S5. Subsequent pressure value is stored as a reference value in step S6, step S7 from there to carry out the increase in P A
Supply the set value with. When the set value is reached at the elapsed time t A ,
As shown in steps S8 to S10, the water supply is stopped.
発明が解決しようとする課題 しかしながら上記の様なシーケンスでは、設定水位が
貯水部１の上面以上に設定もしくは、ステップ５の変曲
点検知後に、排水栓51が開いた場合には、給水が際限な
く継続するという欠点を有していた。Problems to be Solved by the Invention However, in the above-described sequence, if the set water level is set to be equal to or higher than the upper surface of the water storage unit 1 or if the drain plug 51 is opened after the inflection point is detected in step 5, water supply is limited. Had the drawback of continuing.
本発明はかかる従来の課題を解消するもので、貯水部
よりの水あふれ、水ぬけエラーを検知することを目的と
するものである。The present invention has been made to solve the conventional problem, and has as its object to detect a water overflow from a water storage unit and a drainage error.
課題を解決するための手段 上記課題を解決するために、本発明の検知装置は設定
値までの給水において、圧力センサからの水位上昇信号
の有無をチェックするシーケンスを組みこんだ制御手段
を有するものである。Means for Solving the Problems In order to solve the above problems, the detection device of the present invention has a control unit incorporating a sequence for checking the presence or absence of a water level rise signal from a pressure sensor when supplying water up to a set value. It is.
作用 本発明は上記した構成により、設定水位チェックの際
に、圧力センサからの水位上昇信号をチェックし、水位
上昇信号がない場合は、あふれ、水抜けエラーとして、
運転停止を行なうものである。Operation The present invention, by the above-described configuration, at the time of setting water level check, checks the water level rise signal from the pressure sensor, if there is no water level rise signal, overflow, as a drainage error,
The operation is stopped.
実施例 以下、本発明の実施例を第１図，第２図、第３図にも
とづいて説明する。なお、水位検知装置のシステム図は
第２図と同じであり、これを利用して説明し、さらに第
４図と同一ステップには、第１図にも同一符号を付与し
てある。すなわち、本発明の従来と異なる点は、制御手
段13がステップS7の設定値給水において、ステップS11
とS12の判定を付加した点にある。ステップS7の設定値
給水を行なうたびに水位の上昇度を計算し、予め定めら
れた上昇度に達するまでの時間を測定しながら、設定値
給水を続行するが、その時間が定められた時間を越える
と運転を停止する様なシーケンスとなっている。Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1, 2 and 3. The system diagram of the water level detecting device is the same as that of FIG. 2 and will be described with reference to FIG. 2, and the same steps as those of FIG. 4 will be denoted by the same reference numerals in FIG. That is, the difference of the present invention from the conventional one is that the control means 13 performs the step S11 in the set value water supply in the step S7.
And S12. Each time the set value water supply in step S7 is performed, the rising level of the water level is calculated, and while measuring the time until reaching the predetermined rising degree, the set value water supply is continued. When it exceeds, the sequence is such that the operation is stopped.
また、第６図によると、本来、第５図のように圧力が
PX＋PAになったところで設定値給水を完了するのだが、
経過時間t1のところで貯水部１のあふれが生じたとする
と圧力上昇がなくなり、一定時間を越えても、圧力上昇
がないため、一定時間t2のポイントでエラーを圧力セン
サ８が検出し、この信号を制御手段13が判定して給水源
10とポンプ６運転を停止するものである。In addition, according to FIG. 6, the pressure originally should be as shown in FIG.
The set value water supply is completed when P X + P A is reached,
If the water storage unit 1 overflows at the elapsed time t 1 , the pressure does not rise, and the pressure does not rise even after a certain period of time. Therefore, the pressure sensor 8 detects an error at the point of the certain time t 2. The control means 13 determines the signal and
10 and the operation of the pump 6 are stopped.
これにより、設定値給水中の貯水部１よりのあふれ、
水ぬけにより生じる際限のない給水を防止することがで
きる。As a result, overflow from the water storage unit 1 during the set value water supply,
Endless water supply caused by drainage can be prevented.
また本発明における水位基準値の設定は変曲点測定直
後ではなく、一定の時間を経てから行なってもよい。た
だし、この場合水位PAはこの分だけかさ上げされた設定
となる。In addition, the setting of the water level reference value in the present invention may be performed not after the inflection point measurement but after a certain period of time. However, the in this case the water level P A is the amount corresponding or Is raised settings.
発明の効果 以上の様に本発明の水位検知装置は、貯水部への設定
値給水中に一定時間内に所定以上の水位上昇がない場合
には給水運転を停止するようにしてあるため、設定値給
水中の貯水部よりのあふれ、水ぬけがあっても、際限な
く給水が行なわれるという不具合を解消することができ
る。Effect of the Invention As described above, the water level detection device of the present invention is configured to stop the water supply operation when the water level rise to a predetermined value or more within a predetermined time during the set value water supply to the water storage unit is set. Even if there is overflow or drainage from the water storage unit during the value water supply, it is possible to solve the problem that the water supply is performed endlessly.
第１図は本発明の一実施例における水位検知装置の制御
手段のフロー図、第２図は本発明が適用される水位検知
装置のシステム図、第３図は同装置における制御手段の
ブロック図、第４図は従来の制御手段の給水モード運転
のフロー図、第５図は同圧力特性図、第６図は本発明の
水位検知の制御シーケンスを説明する圧力特性図であ
る。 １……貯水部、４……往き管、５……戻り管、６……ポ
ンプ、８……圧力検知手段、10……給水源、12……切換
手段、13……制御手段。FIG. 1 is a flow chart of control means of a water level detecting device in one embodiment of the present invention, FIG. 2 is a system diagram of a water level detecting device to which the present invention is applied, and FIG. 3 is a block diagram of the control means in the same device. FIG. 4 is a flow chart of a water supply mode operation of the conventional control means, FIG. 5 is a pressure characteristic chart thereof, and FIG. 6 is a pressure characteristic chart explaining a control sequence of water level detection of the present invention. DESCRIPTION OF SYMBOLS 1 ... Water storage part, 4 ... Outgoing pipe, 5 ... Return pipe, 6 ... Pump, 8 ... Pressure detecting means, 10 ... Water supply source, 12 ... Switching means, 13 ... Control means.
Claims (1)
き管および戻り管と、前記戻り管に接続され前記貯水部
の水位を圧力信号として検知する圧力検知手段と、給水
源と、前記給水源に接続された給水管と、前記往き管を
前記戻り管もしくは前記給水管に接続して循環モードも
しくは給水モードに切り換える切換手段と、前記圧力検
知手段からの圧力値を入力とし、給水モード運転を行う
とともに、前記給水モード運転で浴槽水位が、往き管と
戻り管を貯水部に接続するアダプターを越えたときに圧
力が上昇する圧力変曲点を検知した後の圧力値を水位基
準値として記憶し、前記貯水部の水位を定めると共に、
その後、前記圧力検知手段からの圧力値の上昇方向への
変化がなくなった場合に、給水モードの運転を停止させ
る制御手段を備えた水位検知装置。1. A water storage unit, an outgoing pipe and a return pipe connected to a side of the water storage unit, pressure detection means connected to the return pipe and detecting a water level of the water storage unit as a pressure signal, and a water supply source. A water supply pipe connected to the water supply source, switching means for connecting the going pipe to the return pipe or the water supply pipe to switch to a circulation mode or a water supply mode, and a pressure value from the pressure detection means as inputs, While performing the water supply mode operation, in the water supply mode operation, when the bathtub water level detects the pressure inflection point at which the pressure rises when the water level exceeds the adapter connecting the going pipe and the return pipe to the water storage part, the water level is changed to the water level. Store as a reference value, determine the water level of the water storage section,
Thereafter, when the pressure value from the pressure detecting means no longer changes in the increasing direction, the water level detecting device includes control means for stopping the operation of the water supply mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1039905A JP2661238B2 (en) | 1989-02-20 | 1989-02-20 | Water level detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1039905A JP2661238B2 (en) | 1989-02-20 | 1989-02-20 | Water level detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02219953A JPH02219953A (en) | 1990-09-03 |
| JP2661238B2 true JP2661238B2 (en) | 1997-10-08 |
Family
ID=12565975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1039905A Expired - Fee Related JP2661238B2 (en) | 1989-02-20 | 1989-02-20 | Water level detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2661238B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2734834B2 (en) * | 1991-09-09 | 1998-04-02 | ヤマハ株式会社 | Fully automatic hot water supply system |
| JP2607019B2 (en) * | 1992-12-18 | 1997-05-07 | リンナイ株式会社 | Bath water filling equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6389541U (en) * | 1986-11-28 | 1988-06-10 | ||
| JPH0413561Y2 (en) * | 1987-03-31 | 1992-03-30 |
-
1989
- 1989-02-20 JP JP1039905A patent/JP2661238B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02219953A (en) | 1990-09-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2661238B2 (en) | Water level detector | |
| JP2661239B2 (en) | Water level detector | |
| JP3069452B2 (en) | Water heater | |
| JP2596055B2 (en) | Water level detector | |
| JPH02219952A (en) | Water level detector device | |
| JP3162517B2 (en) | Automatic bath pot and hot water pouring control method | |
| JP2887315B2 (en) | Water level detector | |
| KR950007795A (en) | How to Control Washing Water Temperature in Dishwasher | |
| JP3210321B2 (en) | Bathtub water level detection method in automatic bath equipment | |
| JPH0413561Y2 (en) | ||
| JPH0621034Y2 (en) | Residual water detector for bathtub | |
| JPH08303859A (en) | Detector for remaining water in bath device | |
| JP2553619B2 (en) | Water level detector | |
| JPH03193016A (en) | Bath system | |
| JPH01312612A (en) | Water level detection device | |
| JP3930658B2 (en) | Water heater and bathtub hot water washing method | |
| JP2501471B2 (en) | Bathtub water level control system | |
| JP3895051B2 (en) | Automatic bath apparatus and hot water filling control method thereof | |
| JP2927318B2 (en) | Automatic water filling system in hot water heating system | |
| JPS62299650A (en) | Hot water feeding system for bath | |
| JPH04332336A (en) | Overflowing water detecting method in bath equipment | |
| JPH02219944A (en) | Water level sensor | |
| JPH0252945A (en) | Controlling hot-water filling of automatic bath boiler with hot-water supplier | |
| JPH0646110B2 (en) | Automatic bath equipment | |
| JP2600872B2 (en) | Automatic hot water supply control device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |